CN213364629U - Machine head protection device for radiographic inspection of tube-tube plate fillet weld - Google Patents
Machine head protection device for radiographic inspection of tube-tube plate fillet weld Download PDFInfo
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- CN213364629U CN213364629U CN202021560603.4U CN202021560603U CN213364629U CN 213364629 U CN213364629 U CN 213364629U CN 202021560603 U CN202021560603 U CN 202021560603U CN 213364629 U CN213364629 U CN 213364629U
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- machine head
- dynamometer
- fixed rod
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Abstract
The utility model discloses a machine head protection device for the radiographic inspection of the fillet weld of a tube-tube plate, which comprises a vertical tube plate, a machine head, a guide sleeve and a compensation block; one end of a fixed rod is arranged in a pipe hole above the machine head, a locking nut is connected onto the fixed rod, and a locking cone positioned in the pipe hole is fixedly connected to one side of the locking nut; a longitudinal lifting screw rod is connected to the fixed rod through threads, a motor is arranged on the fixed rod, an encoder is arranged on an output shaft of the motor, the lower end of the lifting screw rod penetrates through the upper end of the rotary snap ring in a sliding mode, a backstop step is fixedly arranged at the lower end of the lifting screw rod, a dynamometer is fixedly connected to the lower end of the rotary snap ring, the dynamometer is sequentially connected with a spring and a lifting ring below the dynamometer, and the lifting ring is fixedly connected with the machine; the motor, the encoder and the dynamometer are all connected with the controller; the utility model discloses can avoid the uide bushing to warp and the root takes place the fracture with aircraft nose gravity loading to hanging on the part to protect aircraft nose core component X-ray tube, and degree of automation is high.
Description
Technical Field
The utility model relates to a protection device for pipe-tube sheet fillet weld ray inspection aircraft nose.
Background
With the rapid development of chemical equipment technology, large-scale complex high-parameter chemical heat exchanger products continuously emerge, higher requirements are put forward on the operational reliability of the products, the products are ensured to reliably operate under the environment with severe operating conditions, and the key factor influencing the unplanned outage rate of a unit is the quality of the heat exchanger tube-tube plate fillet weld. Therefore, many heat exchanger products require that X-rays are adopted to detect the internal quality of the tube-tube plate fillet weld so as to achieve the purpose of improving the operation safety and reliability of the unit, and the trend is inevitable.
A rod anode X-ray machine (a microfocus X-ray machine) is required to be adopted for realizing X-ray detection of a tube-tube plate fillet weld, the device belongs to high-value precision detection equipment and needs to be imported in Europe and America, a core component X-ray tube is arranged in a guide sleeve, a tube plate is in a vertical state during detection and arrangement, a guide sleeve on a machine head needs to be inserted into a tube hole of the tube plate, the weight of the machine head, a film and a back baffle is completely born at the root of the guide sleeve, the guide sleeve is subjected to large downward twisting force, the guide sleeve is softened by a large amount of heat energy generated by the X-ray tube during detection, the diameter of the guide sleeve is only 8-12 mm, and therefore the guide sleeve is easy to deform and damage or break.
Disclosure of Invention
The utility model aims at the above-mentioned not enough of prior art, provide a pipe-tube sheet fillet weld ray detection's aircraft nose protection device, it can avoid the uide bushing to warp and the root takes place the fracture with aircraft nose gravity loading to the part of hanging to protect aircraft nose core component X-ray tube, and degree of automation is high.
In order to achieve the above object, the utility model discloses a machine head protection device for the radiographic inspection of the tube-tube plate fillet weld, which comprises a vertical tube plate, a machine head, a guide sleeve arranged outside the X-ray tube of the machine head, and a compensation block sleeved outside the guide sleeve, wherein the compensation block is arranged in the tube hole of the tube plate; is characterized in that: one end of a fixed rod is arranged in a pipe hole above the machine head, a locking nut is connected to the fixed rod through threads, and a locking cone positioned in the pipe hole is fixedly connected to one side of the locking nut; a longitudinal lifting screw rod is connected to the fixed rod through threads, a motor for driving the lifting screw rod to rotate is arranged on the fixed rod, an encoder is arranged on an output shaft of the motor, the lower end of the lifting screw rod penetrates through the upper end of the rotary snap ring in a sliding mode, a backstop step is fixedly arranged at the lower end of the lifting screw rod, a dynamometer is fixedly connected to the lower end of the rotary snap ring, the dynamometer is connected with a spring below, the spring is connected with a hanging ring below, and the hanging ring is fixedly connected; the motor, the encoder and the dynamometer are all connected with the controller;
when the dynamometer is used, when the dynamometer detects that the weight of components such as a machine head below the dynamometer is larger than or smaller than the upper limit value and the lower limit value preset in the controller, the dynamometer indicates that the position of the guide sleeve deviates from the center of the pipe hole where the guide sleeve is located more, the controller starts the motor to rotate forwards or backwards, and controls the rotation angle through the encoder, so that the upper position and the lower position of the machine head are adjusted, the gravity of the machine head is loaded on hanging components such as a fixed rod, the guide sleeve is prevented from being deformed, the root of the guide sleeve is prevented from cracking, the X-ray tube of the; the spring has good uniform elongation characteristic, and the upper and lower positions of the machine head can be more accurately adjusted;
as a further improvement of the utility model, the hanging ring is fixedly connected with the machine head through an annular hoop, two ends of the hoop are connected through a lock catch, and a plastic backing ring is arranged at the inner side of the hoop; the hoop is convenient to be fixedly connected with the machine head, and the plastic gasket protects the machine head from being damaged;
as a further improvement of the utility model, the locking nut is provided with a handle; the locking nut is convenient to rotate;
to sum up, the utility model discloses can avoid the uide bushing to warp and the root takes place the fracture on hanging the part with aircraft nose gravity loading to protection aircraft nose core component X ray, and degree of automation is high.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a top view of the bail of fig. 1.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1 and fig. 2, a machine head protection device for radiographic inspection of a tube-tube plate fillet weld according to this embodiment includes a vertical tube plate 1, a machine head 2, a guide sleeve 3 disposed outside an X-ray tube of the machine head 2, and a compensation block 4 sleeved outside the guide sleeve 3, where the compensation block 4 is disposed in a tube hole of the tube plate 1; one end of a fixed rod 5 is arranged in a pipe hole above the machine head, a locking nut 6 is connected to the fixed rod 5 through threads, a handle 8 is arranged on the locking nut 6, and a locking cone 7 positioned in the pipe hole is fixedly connected to one side of the locking nut 6; the other end of the fixed rod 5 is connected with a longitudinal lifting screw 9 through threads, the fixed rod 5 is provided with a motor 10 for driving the lifting screw 9 to rotate, an output shaft of the motor is provided with an encoder 11, the lower end of the lifting screw 9 slidably penetrates through the upper end of a rotary snap ring 12, the lower end of the lifting screw 9 is fixedly provided with a backstop step 13, the lower end of the rotary snap ring 12 is fixedly connected with a dynamometer 14, the dynamometer 14 is connected with a lower spring 15 through a hanging ring, the spring 15 is connected with a lower hanging ring 16 through a hanging ring, the hanging ring 16 is fixedly connected with the machine head 2 through an annular hoop 17, two ends of the hoop 17 are connected through a lock catch 18, and the inner side of the hoop; the motor 10, the encoder 11 and the dynamometer 14 are all connected with the controller 20;
when the device is used, when the dynamometer 14 detects that the weight of components such as the handpiece 2 below the dynamometer is greater than or less than upper and lower limit values preset in the controller 20, the situation that the position of the guide sleeve 3 deviates from the center of a pipe hole where the guide sleeve is located is more, the controller 20 starts the motor 10 to rotate forwards or reversely, and controls the rotation angle through the encoder 11, so that the upper and lower positions of the handpiece 2 are adjusted until the weight measured by the dynamometer 14 returns to a preset interval, and the weight of the handpiece is loaded on hanging components such as the fixed rod 5, so that the guide sleeve 3 is prevented from being deformed and the root of the handpiece is prevented from cracking, and the X-ray tube serving as a core component of the handpiece is; the spring 15 has good uniform elongation characteristic, and the upper and lower positions of the machine head 2 can be more accurately adjusted; by rotating the locking nut 6, the locking cone 7 is clamped into or withdrawn from the pipe hole, so that the assembly and disassembly are convenient; the hoop 17 is convenient to be fixedly connected with the machine head 2, and the plastic cushion ring 19 can protect the machine head from being damaged.
Claims (3)
1. A machine head protection device for the radiographic inspection of tube-tube plate fillet welds comprises a vertical tube plate, a machine head, a guide sleeve arranged outside an X-ray tube of the machine head, and a compensation block sleeved outside the guide sleeve, wherein the compensation block is arranged in a tube hole of the tube plate; the method is characterized in that: one end of a fixed rod is arranged in a pipe hole above the machine head, a locking nut is connected to the fixed rod through threads, and a locking cone positioned in the pipe hole is fixedly connected to one side of the locking nut; a longitudinal lifting screw rod is connected to the fixed rod through threads, a motor for driving the lifting screw rod to rotate is arranged on the fixed rod, an encoder is arranged on an output shaft of the motor, the lower end of the lifting screw rod penetrates through the upper end of the rotary snap ring in a sliding mode, a backstop step is fixedly arranged at the lower end of the lifting screw rod, a dynamometer is fixedly connected to the lower end of the rotary snap ring, the dynamometer is connected with a spring below, the spring is connected with a hanging ring below, and the hanging ring is fixedly connected; the motor, the encoder and the dynamometer are all connected with the controller.
2. The apparatus of claim 1, wherein the apparatus further comprises: the lifting ring is fixedly connected with the machine head through an annular hoop, two ends of the hoop are connected through lock catches, and a plastic backing ring is arranged on the inner side of the hoop.
3. A tube-tube sheet fillet weld radiographic inspection head protector as claimed in claim 1 or claim 2, wherein: and the locking nut is provided with a handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021560603.4U CN213364629U (en) | 2020-07-31 | 2020-07-31 | Machine head protection device for radiographic inspection of tube-tube plate fillet weld |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021560603.4U CN213364629U (en) | 2020-07-31 | 2020-07-31 | Machine head protection device for radiographic inspection of tube-tube plate fillet weld |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213364629U true CN213364629U (en) | 2021-06-04 |
Family
ID=76142022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021560603.4U Active CN213364629U (en) | 2020-07-31 | 2020-07-31 | Machine head protection device for radiographic inspection of tube-tube plate fillet weld |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213364629U (en) |
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2020
- 2020-07-31 CN CN202021560603.4U patent/CN213364629U/en active Active
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